<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>

  <!-- React核心包 最先引入  提供一个对象React -->
  <script src="../../react资料_stu/依赖包/react.development.js"></script>
  <!-- ReactDOM包  提供一个对象ReactDOM -->
  <script src="../../react资料_stu/依赖包/react-dom.development.js"></script>
  <!-- babel -->
  <script src="../../react资料_stu/依赖包/babel.min.js"></script>

</head>

<body>
  <div id="app"></div>
  <script type="text/babel">
    /* 
      通过ref方式收集表单数据
    
    */
    class App extends React.Component {
      render() {
        return (
          <div>
            姓名: <input type="text" ref={c => this.nameEle = c} />
            <br />
            年龄: <input type="text" ref={c => this.ageEle = c} />
            <br />
            爱好: <input type="text" ref={c => this.hobbyEle = c} />
            <br />
            <button onClick={this.handle}>提交</button>
          </div>
        )
      }

      handle = () => {
        const name = this.nameEle.value;
        const age = this.ageEle.value;
        const hobby = this.hobbyEle.value;

        console.log(name, age, hobby);
      }
    }
    

    const root = ReactDOM.createRoot(document.getElementById('app'));
    root.render(<App />)

  </script>
</body>

</html>